$FANG

Plaumann Mark Lawrence sold $211K of FANG

Plaumann Mark Lawrence sold 1,000 shares of Diamondback Energy, Inc. (FANG) at $210.58 ($0.21M total) on 2026-08-21.

Original reporting
SEC EDGAR · Plaumann Mark Lawrence
Published Aug 24, 2026, 8:01 PM UTC
Analysis
alphai AI DeskAI-generated
Added to alphai Aug 24, 2026, 8:22 PM UTC. Informational, not investment advice.
How this was made
alphai summarizes source reporting and applies a structured AI analysis for relevance, timing, sentiment and ticker impact. Always verify material claims with the original publisher.
alphai market briefInsider activity
Primary signal
$FANG
Neutral
medium confidence
Mentioned
$FANG
Relevance
4/10
alphai data visualization · based on SEC EDGAR
Decision brief

The 30-second read

$FANGNeutralLow
01

Why it matters

The sale is unlikely to move the stock price materially, but traders may monitor for any pattern of insider activity.

02

Market read

Routine insider sale with limited trading relevance.

03

What to watch

Potential tax planning or portfolio rebalancing motives are not disclosed.

Relevance 4/10Novelty 3/10Timing: filed after market close on 2026-08-24

Background

Form 4 filings provide the first public disclosure of insider transactions. This filing reports a director's sale of 1,000 shares.

Company-level read

Ticker impact

$FANGNeutralMedium confidence
Context

Director Mark Lawrence sold 1,000 shares of Diamondback Energy for $210,576 on 2026-08-21.

Expected impact

Minimal short‑term price pressure; likely absorbed without noticeable move.

Evidence & confidence

The sale represents less than 0.1% of total shares outstanding and is a routine 10b5‑1‑free transaction.

Market effects

No material impact on the energy sector; insider activity is isolated.

None; the filing is U.S. specific and does not affect broader regional markets.

Insignificant; the transaction size is too small to influence global sentiment.

Counterpoint

If the director holds a larger stake, even a small sale could hint at upcoming negative news.

Key entities

  • Diamondback Energy, Inc.

    U.S. listed oil and natural gas producer (ticker FANG).

  • Mark Lawrence Plaumann

    Director of Diamondback Energy.

Full insider trading history

This story covers one filing. See everything behind it: every insider buy and sell on record, 10b5-1 plans, late filings, and which officers and directors are trading.

Related articles

$FANGMed

US Shale Producers Must Face Oil Price-Fixing Claims, Judge

U.S. District Judge Matthew L. Garcia ruled that consumers and businesses can proceed with claims against eight shale producers and two executives for allegedly conspiring to restrict U.S. oil output and raise prices. The defendants include Permian Resources Corp., Expand Energy Corp., Continental Resources Inc., and others. Garcia dismissed some state-law claims but allowed most of the case to proceed, citing plausible allegations of a domestic agreement to limit production.

$AEPMedAI 8/10

PUC approves two statewide transmission lines

The Public Utility Commission of Texas approved two statewide transmission lines, totaling over 400 miles, to deliver electricity to oil, gas, and industrial sectors. The unanimous vote authorized Oncor's applications, despite landowner opposition and legislative calls for delay. The projects, part of the 2023 Permian Basin Reliability Plan, aim to alleviate energy bottlenecks but face legal challenges and environmental concerns.

$TPLHighAI 8/10

U.S. Shale E&P Stocks Q2 Results: Benchmarking Chord Energy (NASDAQ:CHRD)

Texas Pacific Land (NYSE:TPL) reported Q2 revenues of $246.1M, up 31.2% YoY but missing estimates. Matador Resources (NYSE:MTDR) reported $1.19B in revenues, up 32.5% YoY and beating estimates. Diamondback Energy (NASDAQ:FANG) reported $5.56B in revenues, up 51.2% YoY and exceeding expectations. Stocks reacted accordingly, with MTDR up 18% and TPL down 2.4%.

$XOMMed

Can ExxonMobil's Permian Growth Keep Driving Upstream Momentum?

ExxonMobil (XOM) reported record Permian Basin production of 1.8 MMBoe/d in Q2 2026, with upstream earnings rising to $7.93B. The company targets 9% annual production growth through 2030, aiming for 2.5 MMBoe/d from the Permian. Diamondback Energy (FANG) and Matador Resources (MTDR) also raised production guidance for the Permian Basin.

$DVNMed

led venture approves Permian

WhiteWater and JV partners Devon Energy, MPLX, Diamondback Energy and Western Midstream Partners approved a final investment decision to build the Solitude Pipeline System, two natural gas pipelines from the Permian Basin to Katy, Texas. Initial capacity is about 2.25 Bcf/d in late 2029, with a second phase adding 2.25 Bcf/d in 2030. WhiteWater owns 50%.